226659712091 has 2 divisors, whose sum is σ = 226659712092. Its totient is φ = 226659712090.

The previous prime is 226659711989. The next prime is 226659712117. The reversal of 226659712091 is 190217956622.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226659712091 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (226659712291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113329856045 + 113329856046.

It is an arithmetic number, because the mean of its divisors is an integer number (113329856046).

Almost surely, 2^226659712091 is an apocalyptic number.

226659712091 is a deficient number, since it is larger than the sum of its proper divisors (1).

226659712091 is an equidigital number, since it uses as much as digits as its factorization.

226659712091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 226659712091 in words is "two hundred twenty-six billion, six hundred fifty-nine million, seven hundred twelve thousand, ninety-one".